Category Archives: Acorn Atom
Projects, information and programming for the vintage Acorn Atom computer.
Acorn Atom reworked
This is my version of the Acorn Atom computer, with a few improvements.I’ve tried to make it easy to build by only using through hole components which were mostly available in the 1970’s.This version has 32K RAM, 4K RAM at #A000, Screen noise killer circuit etcI’ve also designed a case which can be 3D printed. […]
Acorn Atom Reworked development
Hi everyone, I’ve been working on a replica Acorn Atom on and off over a year now and finally have a working prototype I’m happy with. I’ve had a lot of issues with the video out. I just wanted a black and white output, the same as the original Atom, but have had problems with […]
Commodore 16 & Plus 4 8501 to 6510 CPU conversion
C16/+4 8501 to 6510 CPU conversion I have made it possible to convert the unreliable 8501 processor fitted to the Commodore 16 and Plus 4 to the more reliable, cheaper and widely available 6510, as fitted to the Commodore 64. The conversion is very simple for the C16, just plug the small circuit board containing […]
Commodore Plus 4 power connector to C64 version
The Plus 4’s power connector is a square version of the C64’s and is annoying. It’s more convenient to use a Vic 20 or C64 PSU as they are compatible and more readily available. Here’s how to make the necessary modification. First buy a PCB mountable 7 pin DIN connector and cut the two pins […]
Website Crash
Just re-installed WordPress due to a bad plugin causing errors and stopping me from loggin in. Content coming soon.